I purchased 4 of them last summer. I've had them apart and what not. The 850 marine series. Everything looks good, still using billet metering blocks, billet baseplates, threaded air bleeds, idle feed and powervalve restrictors, all 4 carbs matched setup wise.

A few guys I know have used the new Holley Ultra HP and Ultra gen 3 Dominators, and have been really happy with those too.

I'd personally take a new Quick fuel or holley carb ultra series, over some of the overpriced cast pot metal crap that has press in bleeds, that are still on the market.

Im curious, where those C&S carbs aerosol ??

I'm not saying they're bad, I just don't think the new aluminum main bodies are all that consistent. We're seeing quite a difference in A/F ratios between left and right sides of the motor.

Yes all of them. Which in itself is market crap... it doesn't "aerosol" the fuel. Functions just like any other carb, just sloppier. Ask Presicion on here his take on them... he knows first hand as well.